100cm X 100cm. 12cm deep.
Water tray paddling pool.
Perfect for ducks. 
These water trays are very hard wearing. We use them ourselves for all our ducks on the farm - they last years, survive harsh winters and frosts, withstand horses stamping on them and pigs wallowing in them! 
They are very easy to clean out and replenish with fresh water - one clear benefit over a pond or sunken/ fixed pool.
(2nd largest in the picture) 

XL Square Paddling Pool